这个临时文件的名字是：~DFD.tmp (或者是随机生成~DF*.tmp)
其内容用Ultraedit查看是：
[QQHelper]
version=1.0.0.26
url=http://scdown.qq.com/download/QQPhoneHelper.dll
setupfile=QQPhoneHelper.dll
把QQPhoneHelper.dll这个文件改名或删除，在启动QQ后，这个文件会由http://scdown.qq.com/download/QQPhoneHelper.dll 自动下载并安装。
9576 17:01:17 QQ.exe:1484 OPEN D:Program FilesTencentQQ2005QQPhoneHelper.dll SUCCESS Options: Open Access: Execute
29577 17:01:17 QQ.exe:1484 CLOSE D:Program FilesTencentQQ2005QQPhoneHelper.dll SUCCESS
29578 17:01:17 QQ.exe:1484 OPEN C:~DTLog.txt SUCCESS Options: OpenIf Access: All
29579 17:01:17 QQ.exe:1484 QUERY INFORMATION C:~DTLog.txt SUCCESS Length: 0
29580 17:01:17 QQ.exe:1484 QUERY INFORMATION C:~DTLog.txt SUCCESS Length: 0
29581 17:01:17 QQ.exe:1484 QUERY INFORMATION C:~DTLog.txt SUCCESS Length: 0
29582 17:01:17 QQ.exe:1484 WRITE C:~DTLog.txt SUCCESS Offset: 0 Length: 30
29583 17:01:17 QQ.exe:1484 CLOSE C:~DTLog.txt SUCCESS